55040
ZIP 55040 is Isanti, Minnesota, mostly in Isanti County; area codes 763 and 612; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Isanti +1 more
- Metro area
- Minneapolis-St. Paul-Bloomington, MN-WI
- Population
- 14,837
- Coordinates
- 45.4685, -93.2779
Weather right now
Asking the National Weather Service…
Where 55040 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 55040 into a pocket calculator and turn it upside down: OhOSS — not quite a word, sorry.
- ➕ As a number, 55,040 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 43. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101011100000000 - 🏠 Its numerical neighbours: 55038 (Hugo, MN, 25 mi away) and 55041 (Lake City, MN, 88 mi away).
- 🔄 Backwards, 55040 becomes 04055 — and that is a real ZIP code: Naples, ME, 1,112 miles away.
- 👥 14 other ZIP codes are made of exactly the same digits (04055, 05045, 05054, 05405, 05450, 40055, …). The farthest-flung twin is 04055 in Naples, ME, 1,112 miles away.
- 🧭 Farther north than 92% of all ZIP codes, and farther west than 64%.
- 🎯474 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 55040 and you would come out at 45.47°S, 86.72°E — 815 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 41m of daylight. Shortest: 8h 42m.
- 📏 At 98.1 square miles of land, 55040 is bigger than 77% of ZIP codes — room for about 74 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 14,837This ZIP14,837 |
|---|---|
| Households | 5,408This ZIP5,408 |
| Housing units | 5,732This ZIP5,732 |
| Median age | 38.7This ZIP38.7Minnesota38.8US 38.9 |
| Median household income | $90,900This ZIP$90,900Minnesota$89,062US $80,734 |
| Median home value | $314,000This ZIP$314,000Minnesota$329,300US $332,700 |
| Median gross rent | $1,264This ZIP$1,264Minnesota$1,280US $1,413 |
| Bachelor's degree or higher | 20.7%This ZIP20.7% |
| Mean commute | 29.6 minThis ZIP29.6 min |
| Population density | 151.3 / sq miThis ZIP151.3 / sq mi |
Business and tax activity
| Business establishments | 281This ZIP281 |
|---|---|
| Employees | 2,331This ZIP2,331 |
| Annual payroll | $99,859,000This ZIP$99,859,000 |
| Tax returns filed | 7,220This ZIP7,220 |
| Total adjusted gross income | $531,951,000This ZIP$531,951,000 |
Land area
| Land area | 98.07 sq miThis ZIP98.07 sq mi |
|---|---|
| Water area | 3.01 sq miThis ZIP3.01 sq mi |
Counties 55040 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Isanti County | 99.9% |
| Anoka County | 0.1% |
Other place names in 55040
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 55040
| ZIP | City | Distance |
|---|---|---|
55070 | Saint Francis, MN | 4.5 mi |
55005 | Bethel, MN | 5.8 mi |
55008 | Cambridge, MN | 7.0 mi |
55011 | Cedar, MN | 8.7 mi |
55029 | Grandy, MN | 12.1 mi |
55079 | Stacy, MN | 12.2 mi |
55092 | Wyoming, MN | 12.7 mi |
55080 | Stanchfield, MN | 13.9 mi |
55303 | Anoka, MN | 14.5 mi |
55078 | Stacy, MN | 14.9 mi |
Find every ZIP code within 10 miles of 55040 →
Questions about this ZIP code
Where is ZIP code 55040?
55040 is in Isanti, Minnesota, in Isanti County, part of the Minneapolis-St. Paul-Bloomington, MN-WI metropolitan area. Its published point location is 45.4685, -93.2779.
What county is 55040 in?
55040 spans 2 counties: Isanti County and Anoka County. Most of it falls in Isanti County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 55040?
Isanti uses area codes 763 and 612, from NANPA's telephone records.
What time zone is 55040 in?
55040 uses America/Chicago.
How many people live in 55040?
About 14,837 people live in ZIP code 55040, in 5,408 households, at 151.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 55040?
$90,900 a year, against $89,062 across Minnesota.
What ZIP codes are near 55040?
The closest are 55070 (4.5 mi), 55005 (5.8 mi), 55008 (7 mi), 55011 (8.7 mi) and 55029 (12.1 mi).
Is 55040 a PO Box ZIP code?
55040 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “55040 ZIP Code — Isanti, Minnesota (Isanti County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55040
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/55040.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.